Spin polarization of the $ν=5/2$ quantum Hall state
| dc.creator | Feiguin, A. E. | |
| dc.creator | Rezayi, E. | |
| dc.creator | Yang, Kun | |
| dc.creator | Nayak, C. | |
| dc.creator | Sarma, S. Das | |
| dc.date | 2008-04-28 | |
| dc.date | 2009-03-31 | |
| dc.date.accessioned | 2026-07-07T12:57:56Z | |
| dc.date.available | 2026-07-07T12:57:56Z | |
| dc.description | We report on results of numerical studies of the spin polarization of the half filled second Landau level, which corresponds to the fractional quantum Hall state at filling factor $ν=5/2$. Our studies are performed using both exact diagonalization and Density Matrix Renormalization Group (DMRG) on the sphere. We find that for the Coulomb interaction the exact finite-system ground state is fully polarized, for shifts corresponding to both the Moore-Read Pfaffian state and its particle-hole conjugate (anti-Pfaffian). This result is found to be robust against small variations of the interaction. The low-energy excitation spectrum is consistent with spin-wave excitations of a fully-magnetized ferromagnet. | |
| dc.description | Final version published on PRB | |
| dc.identifier | https://arxiv.org/abs/0804.4502 | |
| dc.identifier | http://arxiv.org/abs/0804.4502 | |
| dc.identifier | Phys. Rev. B 79, 115322 (2009) | |
| dc.identifier | doi:10.1103/PhysRevB.79.115322 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/225079 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Spin polarization of the $ν=5/2$ quantum Hall state | |
| dc.type | text |